plumb



'2 Sheets Sheet 1.

(No Model.)

W. H. PLUMB.

APPARATUS FOR HEATING RAILWAY GARS.

Patented May 22, 1888.

ATTORNEYS.

WITNESSES.-

(No Model.) 8 2 Sheets-Sheet 2. W. H. PLUMB.

APPARATUS FOR HEATING RAILWAY (JARS. No. 383,247. Patented May 22, 1888.

IIIIIIII/t Will/(11ml N A A I ATTORNEYS N. PEIERS, PlmmLimo n hnnWashington D4 0,

STATES PATEN tries.

WILLIAM H. PLUMB, OF LAKE CITY, OOLOEADO, ASSIGNOB OF ONEHALF TO 1?. 1?.DICKINSON, OF NEW YORK, N. Y.

APPARATUS FOR HEATING RAILWAY CARS.

SPECIFICATION forming part of Letters Patent No. 383,247, dated May 22,1888.

Application filed May 4, 1887. Serial No. 237,027. (No model.)

To aZZ whom it may concern.-

Be it known that 1, WILLIAM H. PLUMB, of Lake City, Hinsdale county,State of Colorado, have invented certain new and useful Improvemerits inApparatus for Heating RailwayCars,

of which the following is a specification,

This invention relates toanew andimproved system for heatingrailway-cars, which works effectively whether the train is in motion orat [O a standstill at a depot or station, and in which the quantity ofair supplied is automatically regulated,while it can be used in summeror in countries having a warm climate for supplying fresh air of lowertemperature to the cars of a train.

In the accompanying drawings, Figure 1 is avertical longitudinal sectionof a baggage and passenger car equipped with my improved heating system,parts being broken out. Fig.

2 is a sectional plan view of the same, parts being broken out. Fig. 3is a longitudinal sectional elevation of the baggage-car, showing theheater and air-cooler in section and the pipes for conducting theheating or cooling medium. Fig. 4 is a crosssectional view of the same.Fig. 5 is a longitudinal sectional view of the device for regulating thespeed of the air-pump, part being broken away; and Figs. 6 and 7 arerespectively a side view and longitudinal section of the flexiblecoupling for uniting the air-conducting pipes between the cars.

Similar letters of reference indicate corresponding parts.

At the front end of the baggage car A a com partmcnt, B, is provided,which is lined with asbestos, sheet metal,or made fire-proof in anyother suitable manner. In this compartment B is arranged a steam-boiler,O, which is surrounded bya jacket,that forms with the su rface of theboiler an air-heating furnace, I). The compartment B is provided at itsupper part with a screened air-box, F, through which fresh air isadmitted to the compartment B.

In the compartment B an air-pump, K, is located, which is operated by asteanrengine, K, that receives its steam from the boiler G. Saidair-pump compresses the air, which is drawn into the compartment Bthrough the air-box F,and forces the said air through a flue,

L, connecting the pump with the air-heater D into the latter, so as tobe heated by contact with the hot surfaces of the boiler and jacket.From the heaterD the hotair is passed through pipes E,suspended from thebottom of the cars, 5 5 and connected by vertical pipes E with theheater to openings 6 e in the bottoms of the cars. The pump thus drawsin the cold air, transmits the same to the heater, and forces it intothe cars, thus keeping up a continuous circulation of hot air in thecars.

Thelongitudinal supply-pipes E E below the cars are connected byflexible couplings J be tween the cars. Each pipe E is provided at eachend with a damper or gate, 6, for closing the pipe and preventing theescape of air from the same,when,it forms the end of the system ofsupply-pipes. The bottom openings, 6 6, may be provided with registersin the bottom of the carfloors, as shown in Fig. 2. The fleXi- 7o blecouplings J, previously mentioned, consist of sleeves made of asbestusor suitable fireproof material, the middle part of said sleeves beingcorrugated, so as to expand with the motions of the cars around curves,(Sic. The couplings or sleeves are permanently attached at one end tothe heating-pipe E of one car and slipped over the end of the pipe E ofthe next car, to which pipe it is attached by eyes a, projecting fromthe sides of the pipes, and hooks 8c b, pivoted to the sides of thepipes, whereby the couplings are securely retained on the pipes E, asshown in Fig. 6.

In the pipe llLwhich conducts the steam from the boiler to thesteam-engine K, is interposed a cylindrical valvebox, N, in which avalve,

0, with a series of annular channels,is arranged to slide on avalve-face, 0, having ports. In certain positions the ribs in the valve0, close the ports more than at others, and thus permit less steam topass, and at other times the apertures are more open, thus permitting ofmore steam passing to the engine. The stem of the valve 0 is connectedby athreaded sleeve, Q,with a copper rod, P, the opposite end P of 5which is permanently attached to the wall of the compartment B, as shownin Figs. 2 and 5.

By the expansion and contraction of said rod the valve 0 is regulated toadmit a larger or smaller quantity of steam to the engine, so that thesame is worked more or less rapidly,whereby the speed of the engine andpump is increased or decreased and a greater or smaller quantity of airforced through the air-heater and pipes to the cars. The screw-sleeve Qserves to adjust the valve to any desired position. The copper rod P isso adjusted that the valve is shifted automatically,aecording to thetemperature of the outside air, so that a larger quantity of air ispumped through the heater in cold weather and a smaller quantity in warmweather. All these devices are used when the cars are to be heated; butin summer my improved system is adapted to supply the cars with freshand cold air. For this purpose the air-pipes R are arranged along theceiling or roof of the cars and provided with the perforateddistributers R. The ends of the pipes R are connected by flexiblecouplings in the same manner as the pipes E. The pipes R are connectedwith a coil, S, located in a tank, T, for receiving ice, ice-water, orother cooling medium, the other end of said coil being connected withthe flue L and air-pump K, as shown in Fig. 2. The line L has a valve,or, and the pipe leading to the coil S a valve, m, so as to connect theair-pump K either with a cooling-pipe, S, or with the air-heater D.

W represents a coal'bin, and Va water-tank for supplying the boiler-withwater.

Having thus described my il1\(l1ti0l1,l claim as new and desire tosecure by Letters Patent- The combination of a carhaving a compartmentprovided with an opening to the outside air, a device for changing thetemperature of the air admitted to said compartment, an air forcingapparatus for forcing said air through said device, an air-pipeconnecting said device with the air-forcing apparatus, adistributingpipe leading from said temperaturechanging device, asteamengine for driving said apparatus, a steam-boiler, astcam -pipeconnecting the steam-boiler with the cylinder of the engine, a valve'boxin said pipe provided with a valveface having a series of ports, achanneled valve in said box, an expansible rod exposed to the airadmitted to said compartment and connected at one end to the wallthereof, and an adjustable coupling connecting the other end of said rodto the stemot' said valve, substantially as described.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

WILLIAM H. PLUM B.

\Vitnesses:

JAMES GALLOWAY, J. M. MURPHY.

